JP5192543B2 - 薬剤充填済み格納式注射器、該注射器用プランジャーおよび針アセンブリ - Google Patents
薬剤充填済み格納式注射器、該注射器用プランジャーおよび針アセンブリ Download PDFInfo
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- JP5192543B2 JP5192543B2 JP2010513584A JP2010513584A JP5192543B2 JP 5192543 B2 JP5192543 B2 JP 5192543B2 JP 2010513584 A JP2010513584 A JP 2010513584A JP 2010513584 A JP2010513584 A JP 2010513584A JP 5192543 B2 JP5192543 B2 JP 5192543B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3232—Semi-automatic needle retraction, i.e. in which triggering of the needle retraction requires a deliberate action by the user, e.g. manual release of spring-biased retraction means
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- A—HUMAN NECESSITIES
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
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- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
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- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
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- A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
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- A61M5/178—Syringes
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- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
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- A61M5/321—Means for protection against accidental injuries by used needles
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- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
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- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
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- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
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- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
- A61M2005/3235—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
- A61M2005/3238—Trigger provided at the proximal end, i.e. syringe end opposite to needle mounting end
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
- A61M2005/5073—Means for preventing re-use by disconnection of piston and piston-rod by breaking or rupturing the connection parts
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- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/581—Means for facilitating use, e.g. by people with impaired vision by audible feedback
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- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/582—Means for facilitating use, e.g. by people with impaired vision by tactile feedback
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- A—HUMAN NECESSITIES
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
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- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
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- A—HUMAN NECESSITIES
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
- A61M5/345—Adaptors positioned between needle hub and syringe nozzle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Description
この問題に応えて、格納式注射器(retractable syringes)は、注射器の再使用および/または使用済注射器による針刺し損傷を防止する目的で開発されてきた。
特に好ましい目的は、薬剤充填済みの(prefilled)格納式注射器を提供することにある。
好ましくは、前記プランジャーは、前記格納式針と係合し得るプランジャーシールをさらに備える。
適切には、前記制御部材は、前記プランジャーとの係合時に前記格納式針の後退の速度の制御を容易にし、針の後退後には前記プランジャーから取り外し可能である。
好ましくは、前記付勢部材はばねである。
好ましい実施形態では、保持部材は注射筒部の内壁のつがい面(mating surface)に対して相補的なつがい面を備える。
好ましくは、格納式針は、格納式針本体とカニューレとを備える。
特に好ましい実施形態では、解放可能な針保持システムはエジェクタ部材をさらに備える。前記エジェクタ部材は、前記格納式針の後退を促進するために、前記プランジャーによって係合されると、格納式針の保持部材からの解放を促進する。
好ましくは、前記筒部は、前記制御部材の前記プランジャー外装部からの解放を促進する1つ以上の解放部材を有するカラーをさらに備える。
一実施形態において、1つの前記ロッキングシステムは、前記筒部および前記プランジャー外装部の各要素を含む。好ましくは、この実施形態によれば、ロッキングシステムは、前記カラーの要素および前記プランジャー外装部の要素を含む。
好ましくは、前記注射器は前記ロッキングシステムの双方を備える。
(i)内壁と、解放リングを有するカラーとを備えるガラス筒部と、
(ii)解放可能な針保持システムと、該システムは、格納式針および針シールを備える針アセンブリと、前記内壁のつがい面に対して相補的なつがい面を備える保持部材と、前記格納式針を前記保持部材から解放するためのエジェクタ部材とを備えることと、
(iii)前記格納式針と係合可能なプランジャーと、前記プランジャーは、プランジャー外装部、1つ以上の組み合い部分を備える制御部材に破断可能に接続された(frangibly connected)プランジャーロッド、ばね、および前記格納式針に係合し得る単一体プランジャーシールを備え、前記プランジャーロッド、プランジャー外装部および制御部材は、前記ばねを最初に圧縮された状態に維持するように協働し、前記ばねの復元および前記単一体プランジャーシールと係合されているときの前記格納式針の後退を促進するために、前記解放リングが前記プランジャーの下降の終了時に前記1つ以上の組み合い部分を前記プランジャー外装部から脱係合させるまで、前記制御部材の前記1つ以上の組み合い部分は前記プランジャー外装部に係合することと、
(iv)プランジャー外装部の要素とカラーの要素との間、およびプランジャーロッドの要素とプランジャー外装部の要素との間にそれぞれ形成されたロッキングシステムと、該ロッキングシステムは針後退後の注射器の再使用を防止するように作動可能であることとを有する、薬剤充填済みの格納式注射器を提供する。
(i)解放可能な針解放アセンブリを注射筒部に取り付ける工程と、
(ii)前記筒部を流動性内容物で充填する工程と、
(iii)前記筒部にプランジャーシールを挿入する工程と、
(iv)前記プランジャーシールにプランジャーを接続する工程とを有する。
一般的には、格納式注射器10は送出するための流動性内容物で予め充填されて提供される。従って、プランジャー20は、格納式注射器10の流動性内容物を送出するための下降に備えた初期位置で提供される。
ロッキングシステム95Aの実施形態を図12に示す。該実施形態では、後退した針40を引き出すために筒部11からプランジャー20を引き抜くことを防止するために、プランジャー外装部22はカラー13にロックされ、それによって、格納式注射器10の再使用を防止する。この実施形態において、また図10において明らかなように、カラーの相補的な周方向溝137は筒部の縁119を収容する。筒部11とカラー13との間の接合部138には粘着剤または接着剤が塗布されている。プランジャー外装部22は、カラー13のロッキングリム139と係合するロッキングアーム299A,299Bを備える。ロッキングアーム299A,299Bは、プランジャー外装部22の強度を最大にするために互いに約150度の角度で配向されている。
図13および図14を参照すると、格納式注射器10のプランジャー20は、プランジャーロッド21、制御部材50、およびプランジャー外装部22を備える。制御部材50はさらに、最初はプランジャー外装部22の可撓性タブ25と係合する凹部57を備える。プランジャーロッド21および制御部材50は、破断可能な接合部24によって解放可能に接続されている。好ましくは、凹部57および可撓性タブ25は、制御部材50内およびプランジャー外装部22内にそれぞれ成形されている。
格納式注射器の構成要素はすべて、本願において記載した注射器の特定の特徴として、流動性内容物の独特な適正なタイミングおよび効率的な送達、格納式針とのプランジャーの係合および針の後退を保証することを目指している。プランジャーロッドの下降は、エジェクタ部材に当たっている針シールに対してプランジャーシールを長さ方向に「圧迫」し、格納式針が自由に後退できるようにするために、エジェクタ部材が保持部材の指部を十分に広げていることを保証するが、流動性内容物の最後が送出されるまでは格納式針は確実に係合されている。
Claims (14)
- 注射筒部に搭載可能である解放可能な針保持システムであって、基部を有する針本体を備える格納式針と、注射筒部の内壁に対してシールを行い、かつ、格納式針の後退に先だって針本体の基部と解放可能に係合する針シールと、注射筒部の内壁のつがい面に対して相補的なつがい面を備える保持部材とを備え、格納式針を後退させるために、プランジャーが針本体の基部から針シールを解放して針本体と係合するまで、保持部材は格納式針を注射筒部の針端部に保持することができる、解放可能な針保持システム。
- ガラス筒部に搭載可能である、請求項1に記載の解放可能針保持システム。
- 格納式針の保持部材からの解放を促進するエジェクタ部材をさらに備える、請求項1または2に記載の解放可能な針保持システム。
- 保持部材は格納式針と解放可能に係合する複数の変形可能な指部を備え、エジェクタ部材は格納式針との係合から指部を変位させることができ、それによってプランジャーとの係合時に格納式針の後退を可能にする、請求項3の解放可能な針保持システム。
- 前記エジェクタ部材は、保持部材の解放の後に注射器の再使用を防止することを助けるために、保持部材の指部を変形させることができる、請求項4の解放可能な針保持システム。
- 筒部と、プランジャーと、請求項1乃至5のいずれか1項に記載の解放可能な針保持システムとを備えた格納式注射器。
- 前記プランジャーは、プランジャーロッド、プランジャー外装部、制御部材、およびばねを備え、前記プランジャーロッド、プランジャー外装部および制御部材は、前記ばねを初期の圧縮状態に解放可能に維持するように協働する、請求項6に記載の格納式注射器。
- 前記プランジャーロッドは、前記格納式針に係合し得る単一体シールを備える、請求項7に記載の格納式注射器。
- 前記制御部材は、最初は前記プランジャー外装部と係合して、前記ばねを初期の圧縮状態に維持することを助ける1つ以上の組み合い部分を備える、請求項7または請求項8に記載の格納式注射器。
- 前記プランジャーロッドおよび制御部材は解放可能に接続されている、請求項7乃至9のいずれか1項に記載の格納式注射器。
- 前記プランジャーロッドおよび制御部材は破断可能に接続されている、請求項10に記載の格納式注射器。
- 前記プランジャー外装部の要素および前記プランジャーロッドの要素を含むロッキングシステムをさらに備える、請求項7乃至11のいずれか1項に記載の格納式注射器。
- 薬剤充填済み注射器である、請求項6乃至12のいずれか1項に記載の格納式注射器。
- 低分子量ヘパリンの注射剤で予め充填されている、請求項13に記載の格納式注射器。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2007903565A AU2007903565A0 (en) | 2007-07-02 | Prefilled retractable syringe | |
AU2007903565 | 2007-07-02 | ||
US1264307P | 2007-12-10 | 2007-12-10 | |
US61/012,643 | 2007-12-10 | ||
PCT/AU2008/000971 WO2009003234A1 (en) | 2007-07-02 | 2008-07-02 | Prefilled retractable syringe, plunger and needle assembly therefor |
Related Child Applications (1)
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JP2012139803A Division JP5627645B2 (ja) | 2007-07-02 | 2012-06-21 | 格納式注射器用プランジャーおよび該プランジャーを備える格納式注射器 |
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JP2010531679A JP2010531679A (ja) | 2010-09-30 |
JP2010531679A5 JP2010531679A5 (ja) | 2010-11-11 |
JP5192543B2 true JP5192543B2 (ja) | 2013-05-08 |
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JP2010513584A Expired - Fee Related JP5192543B2 (ja) | 2007-07-02 | 2008-07-02 | 薬剤充填済み格納式注射器、該注射器用プランジャーおよび針アセンブリ |
JP2012139803A Expired - Fee Related JP5627645B2 (ja) | 2007-07-02 | 2012-06-21 | 格納式注射器用プランジャーおよび該プランジャーを備える格納式注射器 |
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JP2012139803A Expired - Fee Related JP5627645B2 (ja) | 2007-07-02 | 2012-06-21 | 格納式注射器用プランジャーおよび該プランジャーを備える格納式注射器 |
Country Status (19)
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US (2) | US8361035B2 (ja) |
EP (1) | EP2162173B1 (ja) |
JP (2) | JP5192543B2 (ja) |
KR (2) | KR20120127738A (ja) |
CN (2) | CN103182115B (ja) |
AU (1) | AU2008271920B2 (ja) |
BR (1) | BRPI0812986A2 (ja) |
CA (2) | CA2692968C (ja) |
DK (1) | DK2162173T3 (ja) |
ES (1) | ES2569481T3 (ja) |
HK (2) | HK1143770A1 (ja) |
IL (1) | IL202736A (ja) |
MX (1) | MX347849B (ja) |
MY (2) | MY157157A (ja) |
NZ (2) | NZ595031A (ja) |
RU (1) | RU2450834C2 (ja) |
TW (1) | TWI415646B (ja) |
WO (1) | WO2009003234A1 (ja) |
ZA (1) | ZA200909165B (ja) |
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